let a = '1'
let b = '2'
console.log(a==b);

let s1 = Symbol('1')
let s2 = Symbol('1')
console.log(s1==s2);
 
let s =Symbol('name')
let obj ={
    name:cmx,
    [s]: 'zzj',
    [Symbol('name')]:'阿伟'
}
let n = 22465427656456453

